Irradiation of strawberries

Transcription

1 IAEA-TECDOC-779 Irradiation of strawberries A compilation of technical data for its authorization and control International Consultative Group

2 The IAEA does not normally maintain stocks of reports in this series. However, microfiche copies of these reports can be obtained from IN IS Clearinghouse International Atomic Energy Agency Wagramerstrasse 5 P.O. Box 100 A-1400 Vienna, Austria Orders should

3 The originating Section of this document in the IAEA was: Food Preservation Section International Atomic Energy Agency Wagramerstrasse 5 P.O. Box 100 A-1400 Vienna, Austria IRRADIATION

4 FOREWORD The International Consultative Group on Food Irradiation (ICGFI) was established on

5 EDITORIAL NOTE In preparing this document for press, staff of the IAEA have made up the pages from the original manuscript (s). The views expressed do not necessarily reflect those of the governments of the nominating Member States or of the nominating organizations. Throughout

6 CONTENTS 1. INTRODUCTION...

7

8

9 Although

10 In CV Redcoat grown in Canada a dose of 3.3 kgy prevented fungal development for

11

12 delayed by about 5 days. A dose of 1 kgy preceded by heating was more effective than 2 kgy without prior heating [Sommer et al, 1968]. However, to inhibit growth of R. nigricans the combination of moist heat at C for 10 min plus 2 kgy was required. The shelf-life of different strawberry cultivars grown in South Africa under cold storage (2 C) conditions has been reported as 10 days as compared with nearly 20 days for those receiving moist heat treatment

13 Vitamins

14 Fatty acids Levels of palmitic, palmitoleic, stearic, oleic, linoleic, linolenic, arachidic and icosenoic acid as well as total lipids in homogenates of strawberry fruits were not significantly affected by irradiation

15 same doses, followed

16 during storage. However, these findings may not have any significance under practical situations Colour

17 2.8. TEST MARKETING AND CONSUMER ACCEPTANCE TRIALS Market performance and consumer acceptance studies have been conducted with irradiated strawberries in South Africa [van der Linde, 1979, 1982; van der Linde and Brodrick, 1982], Hungary [Kiss, 1984], France [Laizier, 1987]

18 strawberries which

19 irradiated strawberries grown in green houses or in the open air on plastic sheets since microbial counts

20 dose distribution obtained within

21 Recommended dose ranges General:

22 Codex Alimentarius Commission

23 The results of the wholesomeness data on irradiated strawberries summarized in the 1977 JECFI report [WHO, 1977]

24 TABLE

25 REFERENCES Afif, S.A., Ismail, F.A., Control of post-harvest decay in fruits and vegetables by irradiation. Die Nahrung 20:585. Ahmed, E.M., Dennison, R.A., Fluck, R.C., Textural properties of stored and irradiated Tioga strawberries.

26 Barmore, C.R., Packaging technology for fresh and minimally processed fruits and vegetables.

27 Calandra, J.C, Ives,

28 Dodd, N.J.F., Swallow, A.J., Ley, F.J., 1985.

29 Heide, L., Guggenberger, H., Bögl, K.W., Application of thermoluminescence measurements to detect irradiated strawberries. J. Agric. Food Chem. 38:2160. Herregods,

30 Langerak, D.I., Irradiation of food stuffs - Technological aspects and possibilities, Food Irradiation Now, Proc. Symp. Ede, Laville, Rev. Gen. Froid, Mars Cited in Anon., Lopez, G.M., Rivas, G.A., Ortiri, S.N.,

31 Natarajan, A.T., Kim, C., Loefroth, G., Identification of irradiated strawberries. Int.

32 Salunkhe, O.K., Gerber, R.K., Pollard, L.H., Physiological and chemical effects of gamma radiation on certain fruits, vegetables and their products. Proc. Am. Soc. Hortic. Sei. 74:423. Salunkhe, D.K., Pollard, L.H., Gerber, R.K., Effect

33 Tencheva,

34 BIBLIOGRAPHY ICGFI Documents No. 1 No. 2 Guidelines for Preparing Regulations for the Control of Food Irradiation Facilities International Inventory of Authorized Food Irradiation Facilities No.

35 Other publications issued under the auspices of ICGFI Facts about Food Irradiation